Herding

In short

A friend of mine once bought a stock only because his whole office was talking about it. You have probably felt that same pull, the quiet wish to stand where the crowd stands. Herding is the habit of copying what other people do with money, and it feels safe even when it is not. You can guard against it by writing down your plan before you look at what anyone else is doing. Some people set a waiting period, such as a full week, before they act on a hot tip. Compare any choice with your own goals, your own time frame, and your own costs. If the only reason you can name is that everyone else is doing it, look again. Nobody sensible thinks less of you for waiting.

The whole of it

What it is

I once watched a flock of geese lift off a pond, and not one of them seemed to decide alone. One rose, then a dozen, then all of them, as if a single thought had run through the water. People do something much like that with money, and there is no shame in it. It is one of the oldest habits we have.

Herding means following the choices of a group instead of your own reasoning. The crowd might be neighbors, coworkers, a chat room, or a headline that everyone has seen. You buy what they buy, or you sell when they sell, and the thinking gets handed off to somebody else.

You are not foolish if you feel this pull. Wanting to belong is a decent thing, and it has kept people alive for a very long time. It just does not always serve a savings account well. The crowd does not know your rent, your age, or your plans for the kids. You do.

How it works

If you are holding money and watching prices jump, you know how loud the room can get. When many people rush in, the rush itself starts to look like proof. Each person thinks, they must know something, and so each one follows the next. That is the whole engine. Nobody in the chain has to be lazy or dim. Everyone is doing what feels reasonable.

Fear works the same way in reverse. When people sell in a hurry, staying put feels reckless, even when your reasons for holding have not changed one bit. Regret plays a part too. It hurts more to lose money on a lonely choice than on a popular one. So the crowd offers a kind of comfort. If we all fall together, at least it was not my fault.

Economists have written about this for years, and the topic sits within a field called behavioral finance, which studies how feelings shape money choices. The Securities and Exchange Commission runs a site for everyday investors, called Investor.gov, and it warns readers about hype and fear of missing out. Its advice is to research before you act and to be wary of anything that pushes you to hurry. Pressure to hurry is often the loudest part of the herd.

The numbers, and where to find yours

Herding has no single number of its own. What you can measure is what following a crowd costs you and whether a choice fits your plan. So the numbers worth finding are yours, not the crowd's.

Start with the cost of the thing you are looking at. Many funds and accounts charge a yearly fee called an expense ratio, which is a percent of your balance taken out each year. Every fund must publish it in a document called the prospectus. You can find that on the fund company's own site or through the SEC's EDGAR database, which holds public filings. Next, find your time frame. Money you need in two years sits in a different spot than money for thirty years. Then find your tax picture. If you are putting money into a workplace plan or an IRA, the yearly contribution limit is the current figure, which the official source publishes each year, and the limit for a 401k is the current figure, which the official source publishes each year. The IRS publishes both, and the site fills in the verified figure with its source and date. Last, look at your own cushion. Write down how many months of bills you could cover with cash on hand.

Those four figures, cost, time frame, taxes, and cushion, are the ground you stand on. A crowd cannot see any of them.

A worked example

Let me tell you about a woman named Dana, and I have changed nothing except what she cared to keep private. Dana is thirty four and earns 52,000 dollars a year. Her workplace offers a match of 3 percent, so she puts in 3 percent of her pay and her employer adds the same.

Here is the math, with every input shown. Her contribution is 52,000 times 0.03, which comes to 1,560 dollars a year. The employer adds another 1,560 dollars. That is 3,120 dollars going in each year, and she has done nothing but sign a form.

One spring, three coworkers began raving about a single hot company. Dana felt the tug. She thought about pulling 5,000 dollars from her savings to join them. That felt like belonging. It also would have taken more than a quarter of her cushion. To check, her cushion was 18,000 dollars. Divide 5,000 by 18,000 and you get about 0.28, or 28 percent. Her monthly bills ran 3,000 dollars, so her 18,000 dollars covered 18,000 divided by 3,000, which is six months. Taking out 5,000 dollars would leave 13,000, and 13,000 divided by 3,000 is about four and a third months.

Dana wrote down her goals, waited a full week, and looked at the numbers. Nothing about her goals had changed. The only new thing was the noise. So she kept her plan, kept her match, and left her cushion alone. She did not need to prove anything to her coworkers. Her steady habit was already working for her.

Where it goes wrong

I have a soft spot for people who mean well, and herding trips up the best of them. The first trap is timing. By the time a tip reaches you, a lot of other people have often heard it too. The easy gain, if there was one, may already be gone.

The second trap is confusing volume with truth. A loud crowd is not a correct crowd. Many people can be wrong together, and history has plenty of examples of exactly that.

The third trap is hiding in the group. Following others lets you dodge the discomfort of deciding. That relief is real. It is also expensive if it costs you your plan.

Now here is a gentle warning in the other direction. Doing the opposite of the crowd is not a cure either. Contrarian for its own sake is just herding with the sign flipped. The point is not to defy people. The point is to choose for reasons that belong to you.

Scams lean on this habit hard. I once heard a neighbor describe a pitch that told her everyone on her street was already in. The Securities and Exchange Commission and the Federal Trade Commission both warn about schemes that use fake crowds, such as made up reviews or claims that others are signing up fast. When someone leans on that kind of pressure, slow down and check who is talking.

Questions to answer before you leave this page

Can you say in one sentence why you want to make this choice, without mentioning what anyone else is doing? If the crowd vanished tomorrow, would you still want it? Does it fit your goals, your time frame, and the cash cushion you wrote down? Do you know what it costs each year, and where that cost is published? Have you waited long enough for the excitement to settle, and what would a week from now tell you that today cannot? Who benefits if you rush, and is that person you? If a trusted friend described your plan back to you, would it sound like yours?